Version 0.11.1

The 0.11.1 release is a micro-release addressing a number of smaller bugs in the last release. Many thanks to the contributors to this
release including @hoxbro, @xavArtley, @Jacob-Barhak and @philippjfr.

Enhancements:

• Allow setting horizontal and vertical alignment separately (#2072)
• Expose widgets visible property (#2065)
• Allow bind to extract dependencies and evaluate other dynamic functions (#2056)
• Allow setting root_directory on FileSelector widget (#2086)

Bug fixes:

• Fixed loading of jQuery in BootstrapTemplate (#2057)
• Fix VTK imports to ensure VTKVolume pane renders grids (#2071)
• Fix loading of template resources from relative paths (#2067)
• Fix Spinner component overflow (#2070)
• Handle integer column names on Perspective widget (#2069)
• Fix bundling of template resources (#2076)
• Fix value_throttled in pn.depends decorator (#2085)

Compatibility:

• Switch GitHub OAuth to use header authorization token (#2073)

Version 0.11.0

The 0.11.0 release brings a number of exciting new features to Panel
as well as some enhancements and bug fixes. This release is also
required for Bokeh 2.3 compatibility since a lot of changes to the
Bokeh property system required updates. Many thanks to the many
contributors to this release including @MarcSkovMadsen, @xavArtley,
@hyamanieu, @cloud-rocket, @kcpevey, @kaseyrussell, @miliante,
@AjayThorve and @philippjfr.

Major features:

• A Perspective pane based on the FINOS Perspective library (#2034)
• Implement --autoreload functionality for the Panel server (#1983)
• Add --warm option to panel serve, useful for pre-loading items into the state cache (#1971)
• Add ability to define JS modules and Template specific resources (#1967)
• panel.serve now supports serving static files and Bokeh apps, not just Panel apps (#1939)
• Add a TrendIndicator for conveniently showing history and value of a numeric quantity (#1895)
• Add TextToSpeech widget (#1878)
• Add SpeechToText widget (#1880)
• Add loading parameter and spinners to all components (#1730, #2026)
• Add IDOM pane to develop interactive HTML components in Python (#2004)
• Add powerful new Tabulator widget for flexible and configurable display of tabular data (#1531, #1887)

Enhancements:

• Add watch argument to bind function so that covers all the features of pn.depends (#2000)
• Add format parameter to DatetimeRangeInput widget (#2043)
• Allow ParamMethod and ParamFunction to evaluate lazily (#1966)
• Add value_input parameter to TextInput widgets (#2007)
• Implement Glyph3dMapper support for VTK panes (#2002, #2003)
• Add Jupyter server extension to serve resources (#1982)
• Enhancements for DarkTheme (#1964)
• Add refresh functionality to FileSelector (#1962)
• Add support for Auth0 authentication (#1934)
• Avoid recursive preprocessing slowing down rendering (#1852)
• Add support for per-layer tooltips on DeckGL pane (#1846)
• Add Viewer baseclass for custom user components (#2045)

Bug fixes:

• Fixed FileSelector file icon on selected files (#2046)
• Drop query args when checking URLs (#2037)
• Fix Card.header_background propagation (#2035)
• Disable GoldenTemplate sidebar when empty (#2017)
• Ensure Card.collapsed and Accordion.active parameters are synced (#2009)
• Fix inline resources when saving (#1956)
• Switch Param pane widget type when bounds (un)defined (#1953)

Compatibility:

• Compatibility with Bokeh>=2.3 (#1948, #1988, #1991)
• Updated ECharts pane to 5.0.2 of JS library (#2016)

Documentation:

• Document pn.bind in API user guide (#1973)

Version 0.10.3

Another micro-release in the 0.10.x series focusing primarily on bug and regression fixes. Many thanks to @miliante, @MarcSkovMadsen, @hoxbro, @jlstevens, @jbednar and @philippjfr.

Bug fixes:

• Fix inverted axes on HoloViews plots (#1732)
• Fix enabling/disabling of FileDownload widget (#1510, #1820)
• Fix issues serving template resources on server with route prefix (#1821)
• Fixes for rendering ECharts from pyecharts (#1874, #1876)
• Fix issues with scroll behavior when expanding/collapsing Card/Accordion (#1833, #1884)
• Ensure DiscreSlider label is correctly linked to value (#1906)
• Fix support for setting header_color and header_background on all templates (#1872)
• Ensure that Template preprocessors are applied during initialization (#1922)

Enhancements:

• Support throttled in Param widget (#1800)
• Support rendering of hvPlot Interactive objects (#1824)
• Allow recording session launch time in server session_info (#1909)
• Add Button.value parameter (#1910)
• Support upload of multiple parameters on FileInput (#1911)
• Improve support for DarkTheme in templates (#1855, #1856)

Documentation:

• Fixed IntSlider and FloatSlider example (#1825)
• Updated instructions for using Panel in JupyterLab (#1908)

Version 0.10.2

This is another micro-release primarily fixing various minor bugs in functionality introduced as part of the 0.10.0 release. Many thanks to @MarcSkovMadsen, @ahuang11, @xavArtley, @hoxbro, @jbednar and @philippjfr.

Bug fixes:

• Fix various issues with Template CSS (#1663, #1742)
• Fix BytesIO/StringIO buffers as input to image panes (#1711)
• Fix out-of-bounds errors when assigning to GridSpec with fixed ncols (#1721)
• Fix deserialization issues for Plotly.hover_data (#1722)
• Fixed updating of Alert parameters after initialization (#1725)
• Fix ordering of items added to Template areas (#1736)
• Fix interactivity for items in Card (#1750)
• Ensure onload callbacks are only run once (#1746)
• Allow overriding items in grid based templates (#1741)
• Ensure ECharts and ipywidget rerender when in Card (#1765)
• Ensure template dark theme persists on HoloViews plots (#1764)
• Fix responsive height in Plotly pane (#1770)
• Ensure image panes resize in width and height (#1777)
• Fix issues with Location.sync serialization (#1784)
• ECharts pane now loads echarts-gl for 3D support (#1785)
• Ensure CheckBoxGroup and CheckButtonGroup support arbitrary objects as options (#1793)

Enhancements:

• Improved OAuth encryption key validation (#1762)
• Add progress option to .save method (#1776)
• Add throttled argument to interact (#1259)

Version 0.10.1

This is a micro release of Panel primarily containing bug fixes following the 0.10.0 release. Many thanks to @MarcSkovMadsen, @jbednar and @philippjfr for contributing fixes to this release.

Enhancements:

• Add pn.bind function to bind parameters to a function (#1629)

Bug fixes:

• Fix WidgetBox CSS (#855)
• Fix CSS load order in Templates (#1698)
• Allow setting DiscreteSlider orientation (#1683)
• Ensure JS callbacks and links are only set up once on templates (#1700)
• Initialize pipeline only once (#1705)
• Allow using NumberInput as Param pane widget (#1708)

Version 0.10.0

This is a major release of Panel, with a slew of new features and enhancements, plus a wide array of minor fixes and improvements to the documentation, and website.

Many thanks to the people who contributed to this release, including @philippjfr (principal maintainer), @MarcSkovMadsen (alert pane, templates, docs), @xavArtley (VTK improvements, templates, input/spinner widgets), @maximlt (panel serve), @jbednar (docs, reviewing), @kebowen (templates), @ahuang11 (datepicker), @nghenzi (react template, bugfixes), @nritsche (panel serve), @ltalirz (autocomplete input), @BoBednar (docs), @tmikolajczyk, @halilbay, @hoxbro, and @ceball (testing and automation).

Features:

• Add Card and Accordion layout (#1262, #1266, #1267, #1616, #1619)
• Location component (#1150, #1297, #1357, #1407, #1498, #1519, #1532, #1638, #1658)
• VTK improvements: colorbars (#1270), synchronization (#1248, #1637), orientation widget (#1635), volume controller (#1631), serialization (#1596), follower (#1451)
• Add default templates (#1277, #1374, #1419, #1421, #1459, #1472, #1473, #1479, #1530, #1535, #1608, #1617, #1645, #1647, #1650, #1660, #1661, #1662, #1677, #1682, #1685, #1687)
• Improvements for ipywidgets support (#1285, #1389, #1476, #1675)
• Add pn.state.busy and pn.state.onload callback (#1392, #1518)
• Add support for serving static files (#1319, #1492)
• Add an Alert pane (#1181, #1422)
• Add ability to declare OAuth provider (#820, #1468, #1470, #1474, #1475, #1480, #1508, #1594, #1625)
• Add ECharts pane (#1484, #1691)
• Add busy/loading indicators and enable on Template (#1493)
• Allow serving REST APIs as part of panel serve (#1164)
• Add pn.state.as_cached function (#1526)
• Add MenuButton widget (#1533)
• Add a number of ValueIndicators (#1528, #1590, #1627, #1628, #1633)
• Add support for param.Event (#1600)
• Add IntInput and FloatInput widgets (#1513)
• Record session statistics on pn.state.session_info (#1615, #1620, #1634)
• Bundle external JS dependencies for custom models and templates (#1651, #1655)
• Add support for ipympl (interactive mode) on Matplotlib (#1469)

Enhancements:

• Allow defining explicit embed states (#1274)
• Implement __add__ and __iadd__ on layouts (#1282)
• Add support for hierarchical multi-indexed DataFrame (#1383)
• Add show_index option to DataFrame widget (#1488)
• Link widgets with same name during embed (#1543)
• Wait until JS dependency is loaded before rendering (#1577)
• For AutocompleteInput, allow user-defined values (#1588) and case-insensitivity (#1548)
• Allow dates to be disabled in DatePicker (#1524)
• Enable new features for a Bokeh DataTable (#1512)
• Panel serve improvements: MethodType parameter (#1450), title per app (#1354)
• Server deployment guide for Azure (#1350)
• Add Widget.from_param classmethod (#1344)
• More options for ACE widget (#1391)

Bugfixes and minor improvements:

• VTK model compilation (#1669), findPokedRenderer (#1456), misc (#1406, #1409)
• Fix parameterized parameter handling (#1584)
• Theming improvements (#1670)
• JS dependency handling (#1626)
• Parameterized: explicit triggering (#1623), strings with None default (#1622)
• Docs and examples (#1242, #1435, #1448, #1467, #1540, #1541, #1558, #1570, #1576, #1609)
• Many other minor fixes and improvements (#1284, #1384, #1423, #1489, #1495, #1502, #1503, #1507, #1520, #1521, #1536, #1539, #1546, #1547, #1553, #1562, #1595, #1621, #1639)

Backwards compatibility:

• Switch away from inline resources in notebook (#1538, #1678)
• Viewable.add_periodic_callback is deprecated; use pn.state.add_periodic_callback (#1542)
• Use widget_type instead of type to override Param widget type in Param pane (#1614)
• Spinner widget is now called NumberInput (#1513)

Version 0.9.7

The 0.9.6 release unfortunately caused a major regression in layout performance due to the way optimizations in Bokeh and Panel interacted. This release fixes this regression.

• Fix regression in layout performance (#1453)

Version 0.9.6

This is a minor bug fix release primarily for compatibility with Bokeh versions >=2.1.0 along with a variety of important bug fixes. Many thanks for the many people who contributed to this release including @mattpap, @kebowen730, @xavArtley, @maximlt, @mycarta, @basnijholt, @jbednar and @philippjfr.

• Compatibility with Bokeh 2.1 (#1424, #1428)
• Fixes for FileDownload widget handling of callbacks (#1246, #1306)
• Improvements and fixes for Param pane widget mapping (#1301, #1342, #1378)
• Fixed bugs handling of closed Tabs (#1337)
• Fix bug in layout clone method (#1349)
• Improvements for Player widget (#1353, #1360)
• Fix for jslink on Bokeh models (#1358)
• Fix for rendering geometries in Vega pane (#1359)
• Fix issue with HoloViews pane overriding selected renderer (#1429)
• Fix issues with JSON pane depth parameter and rerendering (#1431)
• Fixed param.Date and param.CalenderDate parameter mappings (#1433, #1434)
• Fixed issue with enabling num_procs on pn.serve (#1436)
• Warn if a particular extension could not be loaded (#1437)
• Fix issues with garbage collection and potential memory leaks (#1407)
• Support recent versions of pydeck in DeckGL pane (#1443)
• Ensure JS callbacks on widget created from Parameters are initialized (#1439)

Version 0.9.5

This release primarily focused on improvements and additions to the documentation. Many thanks to @MarcSkovMadsen, @philippjfr and @michaelaye for contributing to this release.

Enhancements:

• Add Template.save with ability to save to HTML and PNG but not embed (#1224)

Bug fixes:

• Fixed formatting of datetimes in DataFrame widget (#1221)
• Add panel/models/vtk/ subpackage to MANIFEST to ensure it is shipped with packages

Documentation:

• Add guidance about developing custom models (#1220)
• Add Folium example to gallery (#1189)
• Add FileDownload and FileInput example to gallery (#1193)

Version 0.9.4

This is a minor release fixing a number of regressions and compatibility issues which continue to crop up due to the upgrade to Bokeh 2.0 Additionally this release completely overhauls how communication in notebook environments are handled, eliminating the need to register custom callbacks with inlined JS callbacks to sync properties. Many thanks to the contributors to this release including @hyamanieu, @maximlt, @mattpap and the maintainer @philippjfr.

Enhancements:

• Switch to using CommManager in notebook hugely simplifying comms in notebooks and reducing the amount of inlined Javascript (#1171)
• Add ability to serve Flask apps directly using pn.serve (#1215)

Bug fixes:

• Fix bug in Template which caused all roots to instantiate two models for each component (#1216)
• Fixed bug with Bokeh 2.0 DataPicker datetime format (#1187)
• Publish Panel.js to CDN to allow static HTML exports with CDN resources to work (#1190)
• Handle bug in rendering Vega models with singular dataset (#1201)
• Removed escaping workaround for HTML models resulting in broken static exports (#1206)
• Fixed bug closing Tabs (#1208)
• Embed Panel logo in server index.html (#1209)

Compatibility:

• This release adds compatibility with Bokeh 2.0.1 which caused a regression in loading custom models